Detect FastSpring

PluginView evaluates public page signals in these classes when identifying FastSpring. Individual fingerprint rule bodies are proprietary and are not published.

• JavaScript globals
• DOM selectors
• HTML markup

Illustrative indicators derived from public catalog metadata for FastSpring. A live scan may match additional proprietary rules beyond these examples.

• fastspring
• fastspringAfterMarkupCallback
• form
• <a *href="https?://sites.fastspring.com
• <form *action="https?://sites.fastspring.com

Establishes

One or more public signals on the scanned page matched a known FastSpring signature (5 rules) at the time of the scan.

Does not establish

A sitewide install of FastSpring, an active vendor contract, exclusive use, or that FastSpring is still in place today.

1. 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest FastSpring signals.
2. 2. PluginView reads only public responses (javascript globals, dom selectors, html markup) and scores them against the FastSpring signature set (5 rules).
3. 3. Review the confidence score and text explanation for FastSpring on the results page.

Can PluginView detect FastSpring without logging in?

Yes. PluginView only reads publicly accessible responses when checking for FastSpring — typically javascript globals, dom selectors, html markup. It does not bypass authentication or paywalls.

What category is FastSpring?

FastSpring is classified under Ecommerce, Payment processors in the PluginView directory.

How many fingerprint rules cover FastSpring?

This reference currently tracks 5 fingerprint rules across javascript globals, dom selectors, html markup. Individual rule bodies are proprietary and are not published.

What public signals suggest a site uses FastSpring?

Illustrative public indicators for FastSpring include fastspring; fastspringAfterMarkupCallback; form. A live scan may match additional proprietary rules beyond these examples.